A new species of Tenuipalpus (Acari: Tenuipalpidae) from Iran with notes on the bakeri subgroup.

A new species of the genus Tenuipalpus Donnadieu, 1875 (Acari: Trombidiformes: Tenuipalpidae), namely Tenuipalpus etemadiisp. nov. from Aerva sp. (Amaranthaceae) and Phragmites australis (Poaceae), is described from Iran (Kerman Province). This species belongs to the caudatus species group, bakeri subgroup. This subgroup is briefly reviewed, and a strong biogeographic pattern noted: those species that are also considered part of Tenuipalpus sensu stricto or are close to it, are almost entirely Nearctic (15/16 species), while the remaining 21 species are generally Palaearctic, with just one species from the Nearctic region. [ABSTRACT FROM AUTHOR]